Automatically filling replenishing shuttle for looms



Feb. 16 1926. 1,573,753

W. l. STIMPSON ET AL AUTOMATICALLY FILLINGREPLENISHING SHUTTLE FOR Looms Filed Oct. 6, 1925 www Ulll

"lulu-nv ATTORNEY Patented Feb. iev, 1926.

UNITED STATES 1,573,753 PATENTOFFICE.

WALLACE I. STIMPSON AhTD HARRY A. IDAV'IVS,l OF HOPEDALE, MASSACHUSETTS, AS- 1 y sIGNOns To DRAPER CORPORATION, PORATION or MAINE.

OF' HOPEDALE, MASSACHUSETTS, A COR- AUTOMATICALLY FILLINGVREPLEISHING SHUTTLE'FOR LOOMS.

. lAppueacimi inea October s, 1925.Y serial no. 60,724.

To all '1o/0m t may concer/n: i. f

Be it known that we, WALLACE I. S'riuiL SON and HARRY A. DAVIS, citizens of the more particularly to the bobbin holding end g H of such shuttles. i

It is now the ordinary practice in shuttles l of this general type to provide spring jaws Yeo for engaging the head end of the bobbin, and owing to the distribution of the spring action, the jaws frequently break towards the bobbin holding portion thereof. yIn such priorconstructions, also, it has been usual to provide the jaws by bendinga piece of metal into loop form and securing it by a cross-bolt'in Ythe shuttle,'but such loop form of'jaws as heretofore made has not been constructed with dueregard to the strains placed upon thejaws during replenishment, with the result thatin many cases the jaws themselves break or they. become:

loosened with respect to the Yshuttle itself. A One of the objects of the'present invention is to provide a filling replenishing shuttle with bobbin holding jaws and' shank portion of equal vertical width throughout,Y

and tovprovider between the shank and the bobbin holding jaws bow portions which are weakened or recessed in order to dis tribute thevv spring. action of the jawsand confine it to the bow portion connecting the bows withthe shank, the `result being that when the jaws are forced apart'by the ing.

' coming filling carrier or bobbin, the bow portions only of theV jaws'will be subjected to resiliency or spring action.

Then the aws are suddenly spreadapart by the incoming filling carrier'or bobbin, and the spring of the jaws is confined to the bow portion, as contemplated by the present invention, there results a strain or compressionupon the wood of the shuttle where theV bow portion ofthe bobbin holder merges into the shank, and another feature of the present vinvention therefore consists in inforcing the'walls of the shank receiving chamber formed Vin the wood of the'shuttle,

'shuttle is Vprovided with an elongated shank receiving chamber and the shankof the bobf bin holder is llikewise elongated to receive a through-bolt which unitesthe vmetal por- Anotherfeature of theiinventions of the bobbin holder and associated -i vparts together as Va unit, a cross-bolt, as

usual, being employed'for assisting in maintaining the parts inv their working relations.

Since the bobbin holding jaws are subject to sudden and impulsive strainsduring lre-l plenishment, the jaws'are liable toi be displaced vertically, and another feature of the present invention, therefore, consists in associating with the bobbin holder a spreader having'end portions which overlie the shank -and a portionof the bowof the jaws where- 'in the metalparts are united together as a unit by a through-bolt.

.- The novel featuresfof the present i'nvenj tion' and new combinations Vof. parts will best be made-i clear from theyfollowing description land the yaccompanying drawings of one good. form thereof.;

inthe drawingsl n Fig: l" is a perspective view ofthe. bobbin holding end of a shuttle with the bobbin holding instrumentalities removed to show more clearlyy the Vshank receiving chamber formed in the wood of the shuttle and the reinforcements for the walls of the shank associated parts det-ached from the'shuttle;

Fig. 3 is a plan view showing theyrparts assembled and` held to ,the shuttle;

-. Fig. tv isA ka longitudinal `rsection onfthe line 4-4 Of Fig. 3; and j Fig. 5 is a transverse section on the line A5-.-5 'of Fig. 3. 7

The shuttle l which is made of wood, as

usual, is provided'with the usualr bobbin holding chamber 2, and towards the end of of the shuttle is cut away-to `provide an elongated shank receiving chamber 3,'the lower wall of which is formed by a table or support t comprising a part of the shuttlewood.

the shuttle, as indicated in Fig. l, thev wood The shank receiving chamber 3 extends to the upper surfaces of the shuttle and is provided with a shoulder or ledge 5, and at the lower terminal portion of the side walls of the shank receiving chamber the shuttle wood is cut away to form the rabbet 6, into which the edge portions of the bottom plate of the guide extend, as will further appear.

The side walls of the elongated shank receiving chamber 3 are reinforced in order to preserve the wood of the shuttle from injury during transfer. ln the present instance of the invention, the side walls of the eloneated shank receiving chamber are provided with pins 7 which may be conveniently driven into the wood constituting the side walls of the shank receiving chamber, through the shouldered portion 5, as indicated in l, the construction being such that when the bobbin holder is laterally expanded by the incoming bobbin, the shank portion thereof which bears k [inst the side walls of the ank receiving chamber will tend to compress the wood of the shuttle constituting such side walls of the shank receiving chamber, and such compressing action will, in accordance with the present invention, be resisted by the reinforcements or pins 7 embedded in the wood of the shuttle chamber. @ne pin 7, as shown, is in front and the other in rear of the transverse bolt which passes through the shank of the bobbin holder.

Extending through the bottoni of the shuttle or table portion as indicated in Figs. l and s-, is an opening S preferably located at the tip end portion of the shank receiving chamber for the reception, of a through-bolt to be described.

The bobbin holder indicated in Fig. 2 is provided with the elongated shank portion 9 and bobbin holding` jaws l() which are of the same vertical width as the shank portion 9, and between the bobbin holding;` jaws l() and the shank portion 9 the bobbin' holder is bowed, as indicated at ll, such bowed portion being weakened or recessed in order to distribute and coniine the spring action of the bobbin holder` to the bowed portion thereof. In the present instance of the invention, the vertical width of the bobbin holding` jaws l0 between the points a, o, is the same as the vertical width of the shank portion between the points c, d, and between the bobbin holding jaws and the shank portion, the bows ll are recessed or cut away, as at l2, with the result that while the width of the shank portion and jaws remains the same, the spring action or resiliency of the jaws to permit the incoming bobbin to enter between the jaws, is confined to the bow portion of the bobbin holder. This uniform vertical width of the bobbin holding jaws and the shank, gives strength and stability to the bobbin holder as a whole,

while the weakened or recessed bow portions connecting the jaws and shank, distribute and conline the spring action of the bobbin holder to the bows, without weakening the bobbin holding jaws themselves. ll/Yhen, therefore, the bobbin holding jaws lO are separated by the incoming bobbin, the resiliency of the bobbin holder is confined to the recessed bows, the outer surfaces of which where they merge into the shank of the bobbin holder bear against the reinforced portion of the shank receiving chainber.

lt is usual to place between the bobbin holdingjaws and the shank of the bobbin holder an inclined bobbin guide for directing the bobbin into holding` relation with the jaws on replenishment of filling. ln the present instance, the inclined guide is indicated at 1B, and at its top is provided with a top plate lli which overlies the shouldered portion of the shank receiving chamber formed in the wood of the shuttle, and with a. bottom plate l5 which rests upon the llush surface of the elongated table or support a forming the bottom of the shank receiving chamber.

ln accordance with one feature of the present invention, a spacer is provided bct 'een the parallel bent portions constitutingV the shank of the bobbin holder. Such spacer is clearly incicated in Figs. and Il, and comprises end portions which overlie the bobbin holder and with a bent portie; l@ which extends downward between the parallel side portions constituting the shank of the bobbin holder, and about or beneath the transverse bolt 17 which passes through the shank of the bobbin holder.

its indicated in Fig. Il, the front and Vrear portions of the spacer are disposed between the top ofthe bobbin holder and the top plate llof the bobbin guide, and the tip end portion of the spacer is formed as a plate 18 hay ing an opening` 19, the edge portions of the plate 1S being of suthcient size to rest upon the shoulder 5 of the shank receiving chamber. The front end portion of the spacer is provided with wings 20 which overlio the bobbin holder at approximately the point where the bows 1l merge into the shank of the bobbin holder.

Heretofore it has been the usual practice to secure the top plate of the bobbin guide to the shuttle by a screw passing into the wood of the shuttle7 a construction which is liable to permit detachment of the parts under the severe strains and shocks towhich the shuttle is subjected. In accordance with the present invention, therefore, the metal parts of the bobbin holder and associated elements are held together as a unit by a through-bolt 2l which passes vertically through the top plate la of the bobbin guide, the opening 19 of the plate 18ct the spacer through the shank of the .bobbin'hold-v er adjacent the end wall. '22 thereof, Y as indicated in Fig. 4, andthe lower end of the bolt passes through an opening in thek end portion ofthe bottom plate 15 ofthe bobbin guide. The flower end of theyV bolt 21 is threaded, as at 23', and the shuttle wood itself is cut: away to forni a `chamber Q/Lfor the reception of the .bolt securing means', such as the nut Q5, theconstruction being such that all the metal parts at the tip endr portion of thebob-bin holder are united together as a unit byv the through-bolt 21,

and inasmuchas the end portion 26'- ot' the' lower plate ofthe bobbin guide extends into the rabbets 6,6, formed in the wood of the shuttle, and" theplate 18 and top plate '11i rest upon the shouldered portion'A loof, the

shank receivinofchaniber the metal darts are n t not only clamped together as a unit .but are heldto the wood of the shuttle (without,

however, dependence on the wood-off the shuttle) by engagement therewith by the through-bolt. Y y Y Y v The vshank portion of the bobbin hol-der, as has been heretofore indicated, is elongated and fits the elongated shank receiving cham ber of the shuttle, thereby imparting'to the bobbin holder as a whole vstability ot contact Vwith the wooden portionot theshuttle,and such shankpoi'ti'on is substantiallylongerv than the bobbin engaging portion, of the jaws 10; and the shank being connectedto the bobbin holding jaws by the recessed bows 11, to which the spring action of the holder is confined, all Aliability of'breakage'of 'the' bobbin holding jaws themselvesfL during transfer is avoided. f

`VVhat is claimed is: f

l. An automatically replenishing shuttle having a bobbin holder comprising a shank portion and bobbin holding jaws of equal width, the curved portions Hof the bobbiny holder connecting the shank and `bobbin holding jaws and constituting'the spring element of the jaws being Yrecessed or reduced in width to distribute and conline the spring of the jaws'to the said curved por-` Va length greater Y.than the length of the bob-v bin holding jaws, abobbin 'holderl compris..`

ing a shankportion andbobbin holding jaws ofequal width, the shank portion being of a length substantially greaterl than the bobbin holding jaws to fit the shank receiving receiving chamber and bobbin 'holding jaws chamber, and the curved portion between the shank andV bobbin holding jawsbeing weakened at one edge Atovdistributeand confine the' spring of thejaws to said curved porel tion, .and a bolt for securingthe shank in the shank receiving chamber.

3. An automatically replenishing 'shuttle' having the' wood of the shuttle cut away at f oneendto form a shank receiving chamber, a 7

bobbin holder comprising shank portion and ybobbin holding .jaws of equal width with-the curved bowl portions. connecting lthe two re-. cessed along oneI edgeto confine and dis? tribute the spring of the jaws'to said curved portion andlavoid breakage oithe jawsy tlieinselvesr on replenishment of lfilling, a

through-bolt passed vertically through the shank' oi: the bobbin holder, and a`trans-.

versebolt passed-,through the shank ofthe bobbinholder at Substantially right angles to the throughfbolft that the ybobbin holder may be stabilized in bobbin holding position.

et. An automatically replenishing` Vshuttle having a bobbin holder comprising a shank portion bobbinholding jaws,l a bobbin guide havin-g atop plate'and bottomplate, a, spreader Ihavingf a part overlyingfthe shank of the bobbin'holder, and a through-- bcltf passing Vthrough `the top vand bottom lplates of the bobbin Ouide, the spreader,'and

the shank oi the bobbin holder. f g

in automatically replenishing shuttle having a bobbin holder comprisinga shankV portion andbobbin holdingf jaws,a bobbin guide havinfga top plate and* bottom' plate,

a' spreader having alfpart overlying the shank or" the .bobbin holder, afthroughbolt Y passing ythroughthe ,top andjbottom plates kolf the bobbin guide, Athe spreader,k andthe shank-0f the bobbin holder,v and a transverse bolt PflSSlIlg' through the vshank at iight angles tothe through bolt v i 6. An automatically 'replenishing' shuttle provided with a shank-receiving chamber, a

vbobbin holder comprising a shank'portion and bobbin holding jaws, the walls oit' the shank receiving chamber adjacent the shank of the vbobbin holder being reinforced vto prevent injury to the shuttle wood by the l spreading action of the bobbin holding aws during replenishment, of lling, and means for securing the bobbinholder to the shuttle.

'7, An automatically replenishing shuttle provided vwith a shank receivingchamber `formed inthe lwo'od of the shuttle, a bobbin holder comprising a Ashank portion and `Y"bobbin holding jaws, aridv a metallic reinforce for'the walls of theshank receiving chamber to prevent injury to the Awood of `the shuttie as the" bobbin holding jaws are separated. v.

8,. An automatically replenishing shuttle 'having an elongatedshank receiving cham-Y ber, a bobbin holder comprislngyan elon gated shank Vportion occupying the shank Yot the saine width vertically as the shank portion and connected thereto by a recessed 1 Cil such recessed bow, and pins for reinforcing the wooden walls ot the shank receiving chamber to prevent injury to the shuttle wood as the jaws are spread.

9. An automatically replenishing shuttle having an elongated shank receiving chamber, a bobbin holder comprising an elongated shank portion occupying the shank receiving chamber and bobbin holding jaws of the same width vertically as the shank portion and connected thereto by a recessed bow distributing the spring ot the jaws to such recessed bow, and two bolts passing through the elongated shank portion of the bobbin holder' at right angles to each other.

ll). in automatically replenishing shuttle having an elongated shank receiving chamber, a bobbin holder comprising an elongated shank portion occupying the shank receiving chamber and bobbin holding aws of the same vertical width as the shank portion and connected thereto by recessed bows to confine and distribute the spring action of the aws to such recessed bows, a spreader having front and rear portions overlying the elongated shank of the bobbin holder, and a vertical through-bolt passing through the one oi' the overlying portions of the spreader and also through the shank portion of the bobbin holding jaws. Y

' 1l. n automatically replenishing shuttle having an elongated shank receiving cham-` ber, a bobbin holder comprising an elongated shank portion occupying the shank receiving chamber and bobbin holding jaws or" the same vertical width as the shank portion and connected thereto by recessed bows to confine and distribute the spring action of the jaws to such recessed bows, a spreader having front and rear portions overlying the elongated shank of the bobbin holder, a vertical through-bolt passing through one ot the overlying portions ol the spreader and also through the shank portion of the bobbin holding jaws, and a transverse bolt at right angles to the through-bolt passing transversely through the shank portion of the bobbin holder and engaging an intermediate portion of the spreader.

l2. An automatically replenishing loom shuttle provider with a shank receiving chamber, a bobbin holder comprising a shank portion and bobbin holding jaws, a transverse boltror securing the bobbin holder to the shuttle, the walls ot the shank receiving chamber having reinforcing pins held in the wood of the shuttle at each side of the bobbin holder shank and nearer the adjacent end of the shuttle than the transverse securing bolt.

ln testimony whereof, we have signed our names to this specication. Y

WTALLACE I. STIMPSON. HARRY A. DAVIS. Y 

